Hydrocarbon burner and furnace.



PATENTBD SEPT. 15, 1903. D. GLWILGUS. y HYDROGARBON BURNER AND FURNAGE.

APPLIOATION FILED AUG. 14. 1902.

Z'SHEBTB-SHEET 1.

No MoDBL.

-.UNITED o STATESA Patented September 15, 1903.

PATENT. OFFICE.

DANIEL C. WILGUS, OF-SANI FRANCISCO, CALIFORNIA.

SPECIFICATION forming part of Letters Patent No. 739,043, dated September 15, 1903.v

y Application fiieanu'gust14,19o2. serai No. 119,651. (No maar.)

To a/ZZ whom, it may concern,.-

Be it known that I, DANIEL C. WILGUs, a

citizen of the United States, residingin the city and county of San Francisco, State of California, have invented an Improved Hydrocarbon Burner and Furnace; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to improvements in 1c hydrocarbon-furnaces and burners for the same. Its general object is to render more practicable the use of oil fuel in conjunction with marine boilers.

Specifically its objects are, iirst, to provide I5 a burner in which. all tendency on the part of 2o ,the furnace that the heat is equably distributed over the entire area of the fire-box,

while the engine-room will be -kept comparatively cool.

It consists of the parts and the ,construc- 2 5 tion and combination of parts, as hereinafter set forth, having reference to the accompanying drawings, in which Figure 1 is a plan view, with partial section, of my invention. Fig. 2 is a sectional 3o view of the furnace end of burner. Fig. 3 is a longitudinal section of a `boiler-furnace,

showing application of burner. Fig. 4 is an end view of boiler-furnace.

A A represent twoconcentric pipes respectively conveying` steam or air and oil and having separate respective feed-pipes'2 3,- Respective valves V5 united by a by-pass 4. 6 control the Huid-supply to pipes Vv2 3, and the oil-pipe 3 has a regulating-valve 7, by

4o which lthe oil-feed between certain limits (corresponding to the dierence in consumption when the engine is running at full speedand when running at low speed or between high and low boiler-pressure) may be varied without entirely. shutting o the oil. The stem of valve 7 carries an arm or pointer 8, which is movable between the stop projections 9 on a plate 10, held in place by the bushing-nut 11. By loosening nut 11 the plate can be 5o turned, so that the maximum and minimum oil-supply may be varied according as circumstances demand. The voilpipe A' pro `ing 12 in the latter.

jects rearwardly beyond the surrounding steam or air pipe A and is slidable in abush- A hollow plug 13 screws into the front end of pipe A. The outer end of the plug has an annular ange or baffle 14, while aportion intermediate of said bafle and the end of pipe A' is turned down to form an annular steam-passage and is provided with studs 15, bearing against the inner wall of the reducer or perforated cap 16 on the end of thev steam-pipe A, by which the com vcentric position of the oil-pipe and plug is maintained in relation to the steam-pipe and the reducer. The space 17 between the bafe 14 and the end of the reducer or cap 16 forms an annular steam-outlet passage. A rod 1S extends entirely through pipe A' and is slidable in a bushing 19 in the rear end of said pipe. A helical spring 2O surrounds the projecting portion of the rod and has one end bearing againstthe bushing and the other against an adjustable nut 2l on the rod. The opposite end of the rod carries a radiallygrooved flange or button 22 of approximately the same diameter as bafiie 14. This button is adapted to bear against the outer ,concaved surface ofthe latter, and the radial I grooves'23 form the oil-outlet passages. The

button is -held to its seat by means of the spring 20.

In case the oil-passages become clogged by sand, strings, or other impurities ordinarily carried by the low-grade fuel-oils, these pas= sages can be cleared without removing the burner from the furnace and even without disturbing the oil-feed by simply pressing on the nut 21 to compress the spring 20 and open up a space between the end of button 22 and the end of plug 13 and allow the impurities to be washed out. This feature of a ushing means for the oil-passage is of great importance in operating burners, for frequently serious embarrassment is occasioned by the burners becoming clogged and with no other Way of overcoming the difficulty than t'o shut down the firesto enable a workman to get at the burnentip. By turning the cock 4 in the by-pass steam may be blown through the oil-pipes to thoroughly cleanse them whenever necessary.

The pipe A has a slight reciprocable movement in relation to pipe A for thepurpose of IOO varying the size of outlet-passage 17, according to the supply of steam needed to volatilize the oil issuing through the groove-passages 23. This reciprocable movement is regulated by means of a coupling-ring 24, having a screw-threaded portion connecting with a rigid portion of the casing, as bushing l2, while the flange portion of the ring embraces a flanged sleeve 25, locked Yfirmly ou the oilpipe A'. The ring is freely turnable about sleeve 25,but is prevented from lateral movement thereon by means of a ring 26.

The ring 21 is provided with a suitable handle 27, by which it can be easily turned to move the pipe A and with it the plug 13 to enlarge or decrease the size of the steamoutlet passage 17. The length of pipes 2 3 is such that the latter will have a suitable spread to allow of this adjustment of pipe A in pipe A. By commingling the steam and oil, as here shown, exterior to the burner-casing a small oil-pressure-say not to exceed four or iive pounds-suillces As the opening 17 is widened the llame Will be in the form of a more and more contracted cone and will approach in appearance the straightshot ilame of an ordinary burner. As the opening is narrowed the llame will be more fan-like until it spreads in a circular sheet at right angles to the axis of the burner. This latter form of ilame is particularly advantageous in marine boiler-furnaces of the corrugated type, where it is desired to have the heat as well toward the front of the fireboX as possible. In Figs. 3 and 4 I have shown this `burner applied to such a furnace. B represents the fire-box. In lieu of the ordinary furnace-doors and draft means I brick up the front of the fire-box, as shown at 28, leaving the ventilating-pigeonholes 29 and the arch-passages 30, through which lattera man may enter the lire-box space, as for the purpose of inspecting the boilers. Extending out beyond the frontof the furnace and practically continuous with the lire-box is a cylindrical .sheet-metal shell 3l, closed at the end and provided with a series of ventilators 32 upon its periphery, connected by suitable means, so as to be movable in unison. The Wall 28 is suitably supported by means of the horizontal brackets 33, riveted 4or bolted to the cylinder-head, substantially as shown. In the bottom of the cylindrical extension is a manhole provided with a suitable closure, as 34. The ordinary iron furnace-front is disadvantageous where oil is used for many reasons. It does not retain the heat in the furnace, and the result is that in order to heat up the 'front of the fire-box properly the engine-room becomes unendurably hot. By disposing the brick wall 28 behind the burner the use of a fan-shaped llame is possible, whereby the heat will be deflected from the very ilrst corrugation. The bricks becoming incandescent will assist to consume the oil and retain the heat products in the front of the furnace,while the air-jacket in the cylindrical extension will keep the engine-room.

comparatively cool. The pigeonholing 29 distributes the air equally to the flame, and disposing the ventilators on the sides of the shell instead of in the end relieves the operator of the ierce glare of the furnace-fires.

Having thus described myinvention, what I claim, and desire to secure by Letters Patent, is-

1. The combination in a hydrocarbonburner, of a casing having separate oil and steam passages and separate oil and steam outlets; and a baille over the end of the oilpassage and in contact with the end of the oil-pipe, and havingradial outlets in its inner face, and a rearwardly-extending push-rod for lifting the baffle from the end of the oilpipe and uncovering the oil-passage.

2. The combination in a hydrocarbonburner, of a casing having separate oil and steam passag'esand independentoutlets therefor; oil and steam pipes and a connecting valve-controlled by-pass; a baille normally seated against the end of the oil-pipe and having lateral outlets for the discharge of oil,

said baille having a stem extending rearwardly and adapted to be moved longitudinally to cause the baille to uncover the end of the oil-pipe; 'and a regulating-valve in the oil-pipe and removed from the oil-passages in the casing.

3. The combination in a hydrocarbonburner, of a casing having separate oil and steam passages and independentoutlets therefor; oil and steam pipes connecting with the said passages and a regulating-valve in the oil-pipe at a point removed from the oil-passage in the casing; outlet end of the oil-passage and having lateral grooves forming outlets for the oil; a stem extending from the baille and mounted to slide longitudinally in the casing; and a spring acting upon the stem to hold the baille normally in contact with the end of the oilpipe said baille uncovering said pipe when the stem is moved against the closing pressure of its spring.

4. The combination in an oil-burner of a casing; steam and oil pipes; a by-pass connecting the same; and a baille seating against the discharge end of the oil-pipe and having radial grooves forming a normal oil-discharge, said baille having a push stem slidably mounted in the casing and capable of longitudinal movement to uncover the oil-pipe, and a spring again seating the baille when the pressure upon the stem is released.

5. The combination in a hydrocarbonburner, of concentric oil and steam pipes, a perforated plugin the end of the inner pipe, an annular flange or baille on the end of the plug, a normally-retracted push-rod extending centrally through said inner pipe and plug and out of contact therewith, an enlargement on the end of said rod normallyin contact With the outer surface of said plug and radially grooved to form an annular iluida baille seated against thel los discharge passage therewith, and meansby which said enlargement is normally'held in contact With said plug.

6. The combination in a hydrocarbonburner, of concentric oil and steam pipes, said oil-pipe extending rearwardly beyond the steam-pipe and having a sliding movement within the latter, a perforated plug on the burner endof the oil-pipe, a perforatedcap on the end'of the steam-pipe said cap and plug forming the Walls of the steam-discharge outlet, means by which the sliding movement of the one pipe Within the other may be regulated to vary the size of said outlet, a normally-retracted spring-pressed rod extending cent-rally through the inner oilpipe and means in connection with said rod coperatf ing with the end of said plug to f orm an oildischarge outlet and means for reciprocating said rod.

'7. The combination in a hydrocarbonburner, of respective inner and outer concenf an enlargement on the end of the rod and` adapted to forman oil-outletv with the outer face of the baie, and means for moving said.

rod longitudinally against the pressure ofrits spring, to open said oil-outlet toallovv the oil-passage to be flushed of impurities.

S. The combination in an oil-burner, of con-v centric oil and steam pipes, a perforated plug in the end of the oil-pipe, a perforated cap on vsaid oil-pipe and reciprocable therein, and

means upon the end of said rod forming with the outer surfacehof said baffie the Walls of the oil-outletpassage.

9. The combination in a hydrocarbon-furlnace of a Wall disposed in the front of the fire-box immediately behind the burner and provided with air-passages, an extension` to said {ire-box beyond the front- Wall of the furnace and forming an air-jacket, means car-Y ried bysaid extension for supporting said Wall and Ventilating means in said extension.

10. The combination in a hydrocarbon-fur-- nace of a heat-non-,conducting-arch disposed in the frontof the re-box behind the burner, an extension beyond the furnace-front in continuation of said lire-box, said extensionu closed at the end, support means for. said arch, ventilators in the sides of said eXtension and a manhole in the extension adjacent to the -space beneath said arch.

In Witness whereof I have hereunto set my hand.

DANIEL c. WILcUs.

iVitnesses:

HENRY C. DRoGER, JAMES L. KING.' 

